GridViewImages from DB in ASP.NET using C#

<%@ WebHandler Language="C#" Class="Handler" %>

using System;
using System.Data;
using System.Web;
using System.Data.SqlClient;
using System.IO;

public class Handler : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {

        SqlConnection myConnection = new SqlConnection("Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\Database.mdf;Integrated Security=True;User Instance=True"); 
  myConnection.Open(); 
  string sql = "Select Image_Content from ImageGallery where Img_Id=@ImageId"; 
  SqlCommand cmd = new SqlCommand(sql, myConnection); 
  cmd.Parameters.Add("@ImageId",SqlDbType.Int).Value =Convert.ToInt32(context.Request.QueryString["id"]); 
  cmd.Prepare(); 
  SqlDataReader dr = cmd.ExecuteReader(); 
  dr.Read();
  context.Response.ContentType = "jpeg";//dr["Image_Type"].ToString(); 
  context.Response.BinaryWrite((byte[])dr["Image_Content"]); 

    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }

}